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CVE-2026-66792: Incorrect Authorization in Red Hat Multicluster Global Hub

0
Critical
VulnerabilityCVE-2026-66792cvecve-2026-66792
Published: 08/17/2026 (08/17/2026, 18:12:36 UTC)
Source: CVE Database V5
Vendor/Project: Red Hat
Product: Multicluster Global Hub

Description

A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.

CVSS v3.1

Score 9.9critical

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Technical Details

Data Version
5.2
Assigner Short Name
redhat
Date Reserved
2026-07-27T17:51:24.886Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null
Vendor Advisory Urls
[{"url":"https://access.redhat.com/security/cve/CVE-2026-66792","vendor":"Red Hat"}]

Threat ID: 6a835271bf8831d5395f0bdf

Added to database: 08/17/2026, 18:26:57 UTC

Last updated: 08/17/2026, 18:26:57 UTC

Views: 1

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